Western Mountaineering UltraLite 20 Degree Sleeping Bag

About This Item

Design and Details

  • Interlocking draft tubes and a full down collar that wraps snugly around your neck to help seal in heat
  • Breathable, water resistant shell protects you (and the down) from condensation
  • 5 1/4" spacing of continuous baffles that encircle the bag from zipper to zipper
  • 16 oz of 850 fill is highly compressible, light weight and toasty warm
  • 5" of loft, rated at 20° F
  • Full-length #5 YKK zipper
  • 59/38" Shoulder/Foot Girth
  • 1 lb 13 oz Total Weight
  • Brand : Western Mountaineering
  • Web ID: 23XFMALTRLT20FXXXCSL
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ShapeMummy
Temp Rating20° F
Weight5'6": 1 lb 12 oz; 6'0": 1 lb 13 oz; 6'6": 1 lb 15 oz
Insulation TypeDown
Fill Power850+ Power goose down
Fill Weight5'6": 15 oz; 6'0": 16 oz; 6'6": 17 oz
Shoulder Girth5'6": 59"; 6'0": 59"; 6'6": 60"
Hip Girth5'6": 51"; 6'0": 51"; 6'6": 52"
Knee Girth5'6": 38"; 6'0": 38"; 6'6": 38"
Zipper LocationLeft
Stuff Sack IncludedYes
Stuff Sack Size5'6": 7" x 13"; 6'0": 7" x 13"; 6'6": 7" x 13"

REVIEWS

4.9

100%

Recommended

34 Reviews

Verified Purchase

Best Sleeping Bag For Mountain

I uesd the Sleeping Bag on Taiwan Nanhu Dashan and the weather was 32°F. I feeled so warm and slept well by using this sleeping bag.I buy the second one for my family.

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Verified Purchase

Quality Product

This sleeping bag has exceeded my expectations! Extremely well made and will keep me warm for many camping trips to come. Id highly recommend this item and brand of you are looking for product that can last a lifetime

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Verified Purchase

The Gold Standard

This is the second Western Mountaineering Ultralite in our household, my wife bought this one to match the bag I've been using and sharing with her for five years. There's not much left to say about this bag that's not already been heavily written about in the established canon of lightweight backpacking. Yeah, a quilt would be lighter. But I personally thrash around a lot when I sleep, and have never had a quilt stay on me for an hour, much les a whole night. The 6'6 bag in the supplied stuff sack weighs 884 grams, just barely under 2 lbs. If you have been using cheaper bags, you will be surprised how honest or even modest the 20 degree rating is. I've spent many comfortable nights in this bag in conditions below the 20 degree rating. If it's above freezing and you really like your backpacking partner, two people can use one of these unzipped bags as a quilt. The zipped-up fit of this bag is very tight, to keep the bag lightweight and to keep you warm. I'm 6'3 200 lbs. There's plenty of width in the bag for broad shoulders, but I wish they made a longer length than 6'6. If you're over six feet tall and have big jackrabbit feet, you'll likely feel the same. The 6'6 bag is a lot more appropriately sized to my 5'10 wife than to me. Durability is excellent given the weight. I've spent about 100 nights in this bag, and am not particularly careful around it. I poked some holes in the shell the first year I owned this bag by carelessly throwing a bunch of sharp avalanche gear on my bed after a long day at work. I used some small pieces of generic self-adhesive gear repair tape to fix the holes I made in the bag, and they haven't frayed or expanded at all in the past four years. Functionally the durability of this bag is about the same as the 15lb military surplus ECWS bag I use for car camping.

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Verified Purchase

Best Bag I’ve Ever Owned

Haven’t had a chance to test the temp rating yet, but initial impression is excellent. Very well built, extremely light, very lofty, very warm. I’m really glad I finally pulled the trigger on it. I’ve always wanted one of these bags. It lives up to the reputation and is worth the price tag. Blows everything else I’ve had out of the water.

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Verified Purchase

Simply The Best

This is the 2nd WM bag I've bought and I am convinced no one makes a better quality down.sleeping bag.The attention to detail is outstanding, and every bag is personally signed by the sewer who put it together.One great improvement from my previous bag was a firm strip of fabric along the zipper so that the zipper doesn't get caught in the fabric itself.

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